Wrench.



M. E. ANDERSON.

WRENCH.

APPLICATION FILED SEPT. 18, l9l3.

1, 146,544. Patented July 13, 1915.

ATTK

MAGNUS E. ANDERSON, 0F COKATO, MINNESOTA.

WRENCH.

Specification of Letters Patent.

Patented July is, 1915.

Application filed September 18, 1913. Serial No. 790,555.

To all whom it may concern:

Be it known that I, MAGNUS E. ANDER- son, a citizen of the UnitedStates, residing at Cokato, in the county of Wright and State ofMinnesota, have invented certain new and useful Improvements inWrenches, of which the following is a specification.

This invention relates to improvements in wrenches and its object is toproduce a wrench adapted primarily to remove nuts from vehicle axles orto replace such nuts.

With the foregoing and other objects in view the invention consists inthe combination and arrangement of parts to be hereinafter fullydescribed in the following specification, pointed out in the claim andillustrated in the accompanying drawing which forms a part of saidspecification and in which Figure 1 is a plan of my improved wrench.Fig. 2 is a side elevation of the same. Fig. 3 i; a longitudinal sectiontaken through Like reference characters indicate corresponding partsthroughout the several views.

1 is the handle of my wrench which tapers to a point at one extremity asat 2 so that when temporarily out of use it may be stuck in the ground.Made integral with the handle 1 is the socket 3 which is ser rated as at4 and which is formed with ears 5, 5 that serve as bearings for the axis6 of the angular movable jaw 7 serrated as at 8. it will be noted thatthe serrated portion of the jaw 7 extends into the socket 3 while thenon-serrated portion is disposed adjacent the handle 1 and reststerminally upon a spring 9 secured to said handle as at 10. The tendencyof the spring 9 is to force the adjacent portion of the jaw 7 away fromthe handle thus forcing the serrated portion of said jaw close againstthe adjacent wall of the socket. Bearings 11, 11 carried by the handle 1support the pivot 12 upon which the locking dog 13 works which in oneposition compresses the spring 9 forcing the serrated portion of the jaw7 away from the adjacent socket wall as illustrated best in Fig. 3. Inthe position illus trated in Fig. 2 the dog 13 permits the spring 9 tooccupy its normal position.

When the socket 3 has been fitted upon a nut that it is desired to movethe dog 13 is thrown into locking position thus firmly gripping the nutbetween the serrated portion of the jaw 7 and the serrations 4 of thesocket. Turning the wrench in one direction will tighten the said nutand in the opposite direction will loosen it. 14- is a crank carried bythe handle 1 by which the same is rotated.

What is claimed is In a wrench, a handle formed with a serrated socketto receive a nut, an angular movable jaw pivoted to said handle andextending back upon the same and forward into said serrated socket, apressure spring secured to said handle beneath one end of said movablejaw, and a dog carried by said handle above said spring and movable jawcapable of locking engagement with the last named member whereby theengaged end of said jaw is forced toward said handle against the tensionof said spring and the opposite end of said jaw forced away from theadjacent side of the socket into close engagement with the nut.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two subscribing witnesses.

MAG'NUS E. ANDERSON.

Witnesses:

C. R. PETERSON, C. E. Gsrnnnnne.

Copies of this patent may he obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. 0.

